Service tool



Oct. 31, 1944. B. 1 LA voY smwxcn TOOL Filed April 6, 1944 Patented Oct. 31, 1944 UNITED STATES PATENT OFFICE SERVICE TOOL Bernard L. La Voy. Dearhorn, Mich.

Application April 6, 19, Serial No. 529.767

3 Claims.

This invention relates to service tools in general and particularly to tools for facilitating removal of engines from passenger cars. trucks, boats, etc.

When servicing and making repairs on the engines of modern motor vehicles considerable time is wasted by the mechanic in getting at the engine. The design of passenger cars, trucks and busses now in use is governed by the desire for a streamlined appearance rather than accessibility and the use of deeply drawn fenders, alligator type hoods, etc. has made it necessary for the service mechanic to spend more time in disassembling the car to get at the engine and in reassembling it after the repairs have been made than is spent in actually making the repair. This has caused the cost of engine servicing to rise and ties up mechanics for long periods of time on relatively simple jobs.

In instances where anything but the most simple repairs or adjustments are to be made on the usual automobile engine, the engine must be wholly or partially removed from the chassis. This is usually done by loosening the engine fastening bolts and jacking up the engine by means of portable jacks. This is a slow and unsatisfactory operation and is a frequent cause of accidents. because the engine is at best unstably supported and any violent pulling or pushing will cause it to fall off of the jacks.

It is the principal object of my invention to provide a cheap, easily constructed and simple device for lifting the engine out of the chassis when repairs are being made. The device also supports the engine during the time it is out of the chassis and facilitates moving the engine about the shop to test benches, etc.

For purposes of illustration, I illustrate the use and application of my improved service tool in connection with a V-type engine. but it is useful with other types of engines as well.

In the accompanying drawing wherein characters of reference are used to designate corresponding parts referred to in the following description.

Fig. 1 is an elevational view of an engine supported by my improved device.

Fig. 2 is a sectional view taken as indicated by the arrows 2-2 in Fig. 1.

Fig. 3 is a perspective view of the tool itself.

Fig. 4 is a section along line 4-4 of Fig. 3, and

Fig. 5 is a, view along the line 5-4 of Fig. 4.

In Fig. l, the engine iii has had the valve cover and top-mounted accessories removed and is supported tree of the chassis by my improved service tool ii and a chain II. The latter may be part of an overhead monorail system or part of a. simple hoist such as is found in practically every shop.

The service device Ii comprises a pair of angle sections I: which are rigidly fastened together in spaced relation by bolts ll. The latter are preferably welded in place.

Securely fastened, as by welding, to the upright portions of the angle pieces midway of the length thereof is a block II. The block is provided with a central bore which carries a threaded bolt ii. The latter is freely slidable in the bore and is provided with a handle I! at the top thereof and a flange II at the bottom end.

A wing nut I! having handles 2! is threaded on the bolt IS, a washer 20 being provided in accordance with usual practice. The flange ill is rectangular in shape and is relatively narrow in cross section so that it is adapted to be readily received into the opening 22 in the engine block 23.

As will be understood from the drawings, my engine removing and supporting tool is simple to use.

When it is desired to remove an engine from a chassis, the engine valve cover is removed and the device II is placed on top of the engine with the holding flange l8 positioned parallel to the angle pieces It as indicated by the dotdash lines in Fig. 5. The wing nut I9 is then loosened. the screw it being held from rotating by means of the handle l1, and the flange I! is inserted into the opening 22 and then rotated ninety degrees by means of handle ii. The wing nut I9 is then tightened by means of handles ii and the tool is thus locked to the engine as clearly shown in Fig. 2.

A chain, such as I! in Fig. 1, may now be hooked to one of the bolts l4 and after removing the fastening bolts the engine is ready to be removed from the chassis.

In some instances the repairs needed do not require full removal of the engine. In cases when it is necessary only to tip the engine, the chain may be hooked to the forward bolt II as shown in the dot-dash lines of Fig. l. The bolts ii are preferably placed in such positions that one of them will be approximately in line with the center of gravity of the engine so that the latter can be removed and shifted about the shop with the use of one chain only.

Having thus described one embodiment of my invention by way of example, I wish it underetoodthatldonotintemlthmbytolimitthe adaptedtobelnlertedintoealdvalveopening: invention in the broader aspect: thereof, exoent means oneaid belt for poeltlonlng the flange and aedeilnedintheelaimeappendedbelow ioradiuetingthelamemehthatittlghtlyen- I claim: gages the inner marginal edge or said opening. 1. A; a new article oi manufacture, a tool lor 5 and means on all member for engaging a holstcentrally thereof; I. bolt carried by llld block; a holdlng flange carried by the lower end of said belt; a handle upon the upper end oi. eald belt for positioning raid flange, and means for tight enlng said bolt.

2. Aeenewarticleoimanuiwtumanengine lifting and eupportln'g tool comprlling, a member adapted to rest on the engine and overlie the valve opening thereof: adiuetable means oarrled by said member comprising a flanged bolt 8. In an engine lifting tool in combination, a pair oi angle bare; mean; securing said bare to one another in parallel spaced relationship; a threaded block carried by said here; threaded bolt carrled by said block having means attached thereto for clamping an engine to the bottom flanges of said bare: a handle on one end oi said bolt for positioning eald clamping means; a wing nut carried by eaid bolt tor tlghtening said clamping means and means on said bars for engaging a hoistin means.

BERNARD L. LA VOY. 

